Eagle Ford 429/460 4.300in Crank 6.800in I-Beam Rods -20.5cc 4.390in Pistons Rotating Assembly

This Eagle Street & Strip rotating assembly gives you the core components to rebuild or upgrade your Ford 429/460 engine. You get a 4.300-inch cast crankshaft, 6.800-inch I-beam connecting rods secured with 7/16-inch ARP 8740 bolts, hypereutectic KB pistons with an inverted dome (rated at -20.5cc), plasma-moly file-fit piston rings, and King rod and main bearings. This assembly is designed for street vehicles running on pump gas and naturally aspirated setups.

The cast crankshaft is a solid choice for street performance, offering good durability for everyday driving and occasional spirited use. The I-beam connecting rods are well-built for their intended application, and the included ARP 8740 bolts are a strong point, known for their reliability in holding rod caps securely under stress. The KB pistons are hypereutectic, which means they have a higher silicon content, making them more resistant to expansion and seizure in the cylinder bore compared to conventional cast pistons. The plasma-moly file-fit rings allow you to precisely gap them for your specific engine build, which is crucial for optimal sealing and performance. King bearings are a popular choice, offering good performance for street applications.

This assembly is intended for pump gas and naturally aspirated engines, making it a practical choice for many street builds. Please note that this assembly is not CARB approved and cannot be shipped to California. It's always recommended to consult the manufacturer's installation instructions for proper assembly and torque specifications, especially when dealing with file-fit rings and bearing clearances.